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A plastic shell uv printing process

A technology of plastic shell and process, applied in printing process, printing, printing of special varieties of printed matter, etc., can solve the problem of dyeing/spraying a single color fixed direction, unable to achieve fine gradient or pattern, difficult to control ink thickness and uniformity It can reduce the degree of UV transfer printing and electroplating amplification, improve the diversity, and diversify the printing effect.

Active Publication Date: 2021-04-09
深圳市亿铭粤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The screen printing method has low precision, it is difficult to control the thickness and uniformity of the ink, and the color difference in mass production is large, so it can only make full-color or partial characters
Unable to achieve fine gradients or patterns; dyeing / spraying can only be done in a single color and requires a fixed direction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0035] Implementation case 1:

[0036] A plastic shell UV printing process, comprising the following steps:

[0037] Step S1, selecting PC sheet material and PMMA+PC composite sheet material;

[0038] Step S2. Print graphics and text on one side of the PC board by UV printing. If necessary, first use silk screen printing grafting ink to enhance adhesion;

[0039] Step S3, covering the printing surface of t...

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PUM

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Abstract

The invention discloses a UV printing process for plastic shells. The steps include: S1, selecting PC boards and PMMA+PC composite boards; S2, printing graphics and texts on one side of the PC boards by means of UV printing; S3, converting the PC boards in step S2 The printing surface of the step S4 is covered with a protective film; S4, the uncoated side of the PC sheet of step S3 is made of UV transfer printing, electroplating and silk screen printing; S5, the protective film of the PC sheet of step S4 is torn off; S6, The PC face of the PMMA+PC composite plate is bonded and pasted by the UV glue transfer method and the UV printing surface of the PC plate in step S5, and the composite plate is obtained after UV curing; S7, the composite plate in step S6 is subjected to high pressure or heat Compression forming; S8, hardening the PMMA surface of the semi-finished product in step S7; S9, cutting the semi-finished product in step S8 by CNC shape; S10, hardening the PMMA surface of the semi-finished product in step S9.

Description

technical field [0001] The invention relates to the technical field of printing technology, in particular to a UV printing technology for plastic shells. Background technique [0002] In the current 5G era, due to signal problems, the back cover of the mobile phone will no longer be able to use metal materials with strong signal shielding. Non-metallic ceramics / glass / plastic materials are widely used. However, transparent materials are usually used for glass and plastic materials, and surface effects are decorated on the inner layer. At present, various colors required for surface appearance are completed by silk screen printing, spraying, dyeing, electroplating and other methods. The mobile phone back cover made of the existing composite sheet is made of PMMA+PC composite sheet, and the first layer of color layer is sequentially made on the PC surface of the material; the second layer is used as a UV transfer layer to achieve a certain optical effect; the third layer is us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M1/30B41M1/06B41M1/10B41M3/00B32B27/08B32B27/36B32B27/32B32B7/12B32B37/12B32B38/14B32B38/00B29C51/00B29C63/02
CPCB29C51/002B29C63/02B32B7/12B32B27/08B32B27/322B32B27/365B32B37/12B32B38/00B32B38/145B32B2038/0076B41M1/06B41M1/10B41M1/30B41M3/008
Inventor 曹祖铭
Owner 深圳市亿铭粤科技有限公司
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